Merge pull request #1438 from AFLplusplus/dev 4.01c

push to stable

1 files changed, 8 insertions, 0 deletions

diff --git a/docs/env_variables.md b/docs/env_variables.md
index fe9c6e07..0598a809 100644
--- a/docs/env_variables.md
+++ b/docs/env_variables.md
@@ -517,6 +517,10 @@ checks or alter some of the more exotic semantics of the tool:
     (empty/non present) will add no tags to the metrics. For more information,
     see [rpc_statsd.md](rpc_statsd.md).
 
+  - `AFL_SYNC_TIME` allows you to specify a different minimal time (in minutes)
+    between fuzzing instances synchronization. Default sync time is 30 minutes,
+    note that time is halved for -M main nodes.
+
   - Setting `AFL_TARGET_ENV` causes AFL++ to set extra environment variables for
     the target binary. Example: `AFL_TARGET_ENV="VAR1=1 VAR2='a b c'" afl-fuzz
     ... `. This exists mostly for things like `LD_LIBRARY_PATH` but it would
@@ -615,6 +619,10 @@ The QEMU wrapper used to instrument binary-only code supports several settings:
     emulation" variables (e.g., `QEMU_STACK_SIZE`), but there should be no
     reason to touch them.
 
+  - Normally a `README.txt` is written to the `crashes/` directory when a first
+    crash is found. Setting `AFL_NO_CRASH_README` will prevent this. Useful when
+    counting crashes based on a file count in that directory.
+
 ## 7) Settings for afl-frida-trace
 
 The FRIDA wrapper used to instrument binary-only code supports many of the same